Abstract:
Threshold signature is a kind of special and important digital signature. But in the existing threshold signature scheme, conspiracy attack is still a problem which is difficult to solve. This paper analyzes a threshold signature scheme to withstand conspiracy attack, analyzes its weakness and proposes some heuristic idea and methods to withstand conspiracy attack based on the existing threshold signature schemes.
Key words:
cryptography,
threshold signature,
conspiracy attack
摘要: 门限签名是一种特殊而重要的数字签名。但在现有的门限签名方案中,合谋攻击一直是一个难以解决的问题。该文对现有抗合谋攻击门限签名方案进行了安全性分析,指出该方案存在的缺陷,并基于现有的门限签名体制,对如何抵抗合谋攻击给出了一些启发式的思想和方法。
关键词:
密码学,
门限签名,
合谋攻击
CLC Number:
HOU Zheng-feng; ZHAO Xiang; YANG Xi. Threshold Signature Scheme to Withstand Conspiracy Attack[J]. Computer Engineering, 2008, 34(17): 147-148,.
侯整风;赵 香;杨 曦. 抗合谋攻击的门限签名方案[J]. 计算机工程, 2008, 34(17): 147-148,.